ASTROSAT CZTI

Data Quality Report

Orbit 04068

Creation date: 2024-06-27T14:37:16.013720
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1SLEW_01234_9000000519_04068cztM0_level2.evt modeM0/AS1SLEW_01234_9000000519_04068cztM0_level2_quad_clean.evt
Size (bytes)39,332,16010,635,840
Size37.5 MB 10.1 MB
Events in quadrant A267,87268,973
Events in quadrant B288,58869,297
Events in quadrant C270,93266,431
Events in quadrant D316,46464,081

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012840
B012940
C012820
D014200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63900.000000%
B63900.000000%
C63910.156495%
D63950.782473%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 639 639 0 0 0.00% 0.00%
B 639 639 0 0 0.00% 0.00%
C 639 639 0 0 0.00% 0.00%
D 639 639 7 7 1.10% 1.10%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 0 50 3175 189.25 68 67 16.4
A 0 226 730 40.37 68 67 16.4
A 12 194 691 38.0 68 67 16.4
B 4 81 6565 424.01 70 69 15.3
B 15 204 4821 310.18 70 69 15.3
B 14 167 1855 116.58 70 69 15.3
C 12 4 1210 62.45 68 68 18.3
C 9 144 726 35.98 68 68 18.3
C 13 61 608 29.53 68 68 18.3
D 10 172 46992 2664.26 67 65 17.6
D 2 14 6238 350.47 67 65 17.6
D 2 232 4329 242.09 67 65 17.6

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter